About Mexichromis festiva (Angas, 1864)
Mexichromis festiva is a species of chromodorid nudibranch. Its body is white, with raised pink spots across the mantle. A broken yellow line runs along the edge of the mantle, positioned over an opaque white margin. The rachis of its gill is pink, while the gill leaves are white. The outer half of its rhinophores is pink. This species was first described based on specimens collected from Port Jackson, Australia.